CN108421997A - A kind of axial workpiece bores milling hydraulically operated fixture and its application method - Google Patents
A kind of axial workpiece bores milling hydraulically operated fixture and its application method Download PDFInfo
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- CN108421997A CN108421997A CN201810541881.6A CN201810541881A CN108421997A CN 108421997 A CN108421997 A CN 108421997A CN 201810541881 A CN201810541881 A CN 201810541881A CN 108421997 A CN108421997 A CN 108421997A
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- hydraulic system
- tailstock
- eyelid retractor
- assembly
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000003801 milling Methods 0.000 title claims abstract description 21
- 210000000744 eyelid Anatomy 0.000 claims abstract description 51
- 230000007246 mechanism Effects 0.000 claims abstract description 32
- 238000004519 manufacturing process Methods 0.000 claims abstract description 13
- 238000007689 inspection Methods 0.000 claims description 41
- 238000001514 detection method Methods 0.000 claims description 34
- 238000003825 pressing Methods 0.000 claims description 27
- 238000009434 installation Methods 0.000 claims description 12
- 238000012545 processing Methods 0.000 claims description 8
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 239000002828 fuel tank Substances 0.000 claims description 5
- 230000001788 irregular Effects 0.000 claims description 5
- 230000003139 buffering effect Effects 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 13
- 230000009471 action Effects 0.000 abstract description 6
- 238000004801 process automation Methods 0.000 abstract description 2
- 230000009466 transformation Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 9
- 238000003754 machining Methods 0.000 description 7
- 210000003781 tooth socket Anatomy 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 210000003128 head Anatomy 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000010729 system oil Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B33/00—Drivers; Driving centres, Nose clutches, e.g. lathe dogs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/22—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention discloses a kind of axial workpieces to bore milling hydraulically operated fixture and its application method, the fixture includes the top seat assembly and tailstock assembly that axially position is carried out to workpiece, to workpiece angularly positioned to tooth gauge assembly, workpiece is clamped in process the first eyelid retractor, the second eyelid retractor and compactor；This fixture has been all made of ripe, standardized Hydraulic Elements in centralized positioning, angular positioning and the realization of pinching action, and all devices or mechanism are driven by hydraulic system, and hydraulic system is controlled by controller.Process automation is realized, support is provided into automation, the transformation of intelligent production line for traditional artificial production line.
Description
【Technical field】
The invention belongs to automate axial workpiece field of fixtures, especially a kind of axial workpiece bores milling hydraulically operated fixture and its makes
Use method.
【Background technology】
To adapt to the needs of automated manufacturing, intelligent production, the integrated use of gas, electricity, liquid has become modernization
The development trend of machining production line.Domestic machine adds industry, the drilling and milling fixture of axis tooth part poor in the prevalence of interchangeability, automatic
The problems such as change degree is low seriously hinders the paces of manufacturing automation, intelligent production.
Jackshaft machining contains vehicle, rolls, shaves, the processes such as machining center, due to the old-fashioned fixture used in machining center,
Most of action all uses manually handle, therefore cannot be applicable in automated production.Need to design and develop thus a kind of gas collection inspection, it is automatically controlled and
Hydraulic-driven is in the automation fixture of one.
【Invention content】
It is an object of the invention to overcome the above-mentioned prior art, provide a kind of axial workpiece bore milling hydraulically operated fixture and
Its application method.The present invention according to automation processing request, original be manually operated fixture on the basis of increase automatically controlled, hydraulic pressure and
Device, while corresponding other devices of increase and mechanism ensure that fixture using effect is stablized, and the axial workpiece precision processed is high
And meet indices requirement.
In order to achieve the above objectives, the present invention is achieved by the following scheme：
A kind of axial workpiece bores milling hydraulically operated fixture, including bottom plate and the hydraulic system that is connect with controller, is installed on bottom plate
There are top seat assembly and tailstock assembly, the first supporting rack, the first support are sequentially installed between top seat assembly and tailstock assembly
The side of device and the second supporting rack, tailstock assembly is equipped with tailstock lockable mechanism；Frame is distinguished in the first supporting rack in the both ends of workpiece
On the second supporting rack；The both sides of workpiece axial direction are equipped with to tooth gauge assembly, the second eyelid retractor and compactor, the second eyelid retractor and
Compactor is in the same side of workpiece；
Hydraulic system limits workpiece by driving tailstock assembly to limit the axial displacement of workpiece, by driving to tooth gauge assembly
Angular displacement, pass through and the first eyelid retractor, the second eyelid retractor and compactor driven to clamp workpiece.
Further improvement of the present invention is：
The hydraulic system includes the first hydraulic system, the second hydraulic system and third hydraulic pressure system being parallel under fuel tank
System；When clamping fixture, the first hydraulic system, the second hydraulic system and third hydraulic system start successively；
The tailstock retaining jar of tailstock assembly is connected in first hydraulic system oil circuit；It is connected in second hydraulic system oil circuit
To the angular retaining jar of tooth gauge assembly；Be parallel in the oil circuit of third hydraulic system tailstock lockable mechanism tailstock locking cylinder,
The hold-down cylinder of one eyelid retractor, the second eyelid retractor and compactor is provided in third hydraulic system and limits the driving of third hydraulic system
Device boot sequence sequence valve.
The tailstock assembly includes holder, and the tail end of frame upper is installed with first straight line binding clasp；Workpiece is added
Working hour, the first hydraulic system act on tailstock retaining jar, and tailstock retaining jar acts on first straight line binding clasp；
The part that first straight line binding clasp stretches into holder is connected with the first chain extension bar, and the other end of the first chain extension bar stretches into
To sleeve；One end that first chain extension bar stretches to sleeve is installed with chuck pad, for limiting the first chain extension bar abjection set
Cylinder is outer；Sleeve movement is mounted in holder, and the first end face of sleeve is outside holder, and second end face is in holder；First chain extension bar
Outer be set with contacts the first buffer spring with second end face；Second top, the second top center line is installed in sleeve
Axis with workpiece is same straight line；Holder is additionally provided with the locating part of limitation sleeve rotation.
The tailstock assembly is additionally provided with top lockable mechanism, and top lockable mechanism includes stretching to holder from cradle top
Interior locking tapered bar；Locking tapered bar and barrel contacts, locking tapered bar offer irregular cambered surface, cambered surface in the contact position with sleeve
The vertical range of upper end to sleeve axis is R1, and the vertical range of cambered surface lower end to sleeve axis is R2, sleeve circular section partly
Diameter is R, R1<R<R2；First return spring is installed, the first return spring is contacted with rack inner wall in locking tapered bar bottom；
Tailstock lockable mechanism include on the tailstock locking cylinder being fixedly mounted on bottom plate and tailstock locking cylinder with locking wedge
First pressing plate of bar cooperation；When workpiece is processed, third hydraulic system acts on tailstock locking cylinder, and the first pressing plate is made to revolve counterclockwise
It goes on locking tapered bar.
Described includes the pillar being connected vertical with bottom plate to tooth gauge assembly, and pillar is installed with close on the side of workpiece
Second straight line binding clasp；When workpiece is processed, the second hydraulic system acts on angular retaining jar, and angular retaining jar acts on second
Straight line clamp；
The part that second straight line binding clasp stretches into pillar is connected with the second chain extension bar, and the second chain extension bar stretches out the end of pillar
Portion is hinged with drive rod, the other end of drive rod be hinged with pass perpendicularly through pillar to tooth gauge；To tooth gauge along the center of its thickness
It is contour with the center line of workpiece；Second chain extension bar is set in its one end hinged with drive rod, the length direction along the second chain extension bar
It is equipped with the second buffer spring.
The first support bar of support workpiece is installed, the longitudinal center line of first support bar is vertical on first eyelid retractor
Intersect in bottom plate and with the center line of workpiece；Second eyelid retractor is provided with the second support bar that workpiece is supported from side surface of workpiece, the
The longitudinal center line of two supporting rods intersects with the center line of workpiece；The longitudinal center line of second support bar and the axis of first support bar
It is vertical in three dimensions to center line；When workpiece is processed, third hydraulic system acts on the first eyelid retractor and second simultaneously
Support device.
The compactor is installed by the first eyelid retractor, and compactor includes hold-down cylinder, and the second pressing plate is equipped on hold-down cylinder；Work
When part is processed, third hydraulic system acts on hold-down cylinder, and hold-down cylinder makes the second pressing plate rotate clockwise to push down workpiece, the second pressure
Front edge of board is rectangle, and the central point of rectangle is on the longitudinal center line of first support bar.
The top seat assembly can be along workpiece in the T-slot of bottom plate axial direction move, top seat assembly includes
Fixed plate, fixed plate are fixed on by positioning key on workpiece；Bearing is installed in fixed plate, be installed on bearing with
The first of workpiece contact is top, and the axis of the first top center line and workpiece is same straight line.
The tailstock assembly is provided with the first air tightness detection machine structure, for whether in place to detect the axially position of workpiece；It is right
Tooth gauge assembly is provided with the second air tightness detection machine structure, for whether in place to detect the angular positioning of workpiece；Compactor is provided with
Three air tightness detection machine structures, for detecting whether in place Workpiece clamping unclamps；
The first air tightness detection machine structure, the second air tightness detection machine structure and third air tightness detection machine structure are the identical gas of structure
Close testing agency, including gas examine cylinder, and gas inspection cylinder offers admission line and outlet pipe, gas inspection cavity is provided in gas inspection cylinder；
Gas inspection piston is installed in gas inspection cavity, piston rod is installed in gas inspection piston；The side wall of gas inspection piston offers and air inlet pipe
The annular groove that road, outlet pipe coordinate, gas examine the front end of piston outside gas inspection cylinder front end, and the front end of piston rod is before gas examines piston
End is outer；Gas inspection piston is equipped with the second return spring in its bottom end, and the second return spring is contacted with the gas inspection inside wall of cylinder.
A kind of axial workpiece bores the application method of milling hydraulically operated fixture, includes the following steps：
1) workpiece is placed on the first supporting rack and the second supporting rack by manipulator；Controller gives hydraulic system signal, liquid
Press system drive tailstock assembly top tight workpiece；First air tightness detection machine structure sends gas and examines signal X1 to controller, implementation steps 2)；
2) hydraulic system driving angularly positions workpiece tooth gauge assembly clamping workpiece；Second air tightness detection machine structure is sent
Gas examines signal X2 to controller, implementation steps 3)；
3) hydraulic system drives the first eyelid retractor and the second eyelid retractor contact workpiece, while tailstock lockable mechanism being driven to lock
Tailstock assembly；Hydraulic system drives compactor workpiece pressing；Third air tightness detection machine structure sends gas and examines signal X3 to controller, in fact
Apply step 4)；
4) controller starts processing program；
5) after processing is completed, the oil cylinder of all hydraulic system, the first eyelid retractor and the second eyelid retractor unclamp；Gas check is equal
It keeps in the center, sends gas inspection signal Y；
6) controller receives signal, and manipulator takes workpiece away, into next fabrication cycles.
Compared with prior art, the invention has the advantages that：
The present invention relates to a kind of axial workpieces to bore milling hydraulically operated fixture and its application method, including carries out axially position to workpiece
Top seat assembly and tailstock assembly, to workpiece angularly positioned to tooth gauge assembly, to workpiece into conduct in process
To the first eyelid retractor, the second eyelid retractor and compactor of clamping；This fixture is in centralized positioning, angular positioning and pinching action
Ripe, standardized Hydraulic Elements are all made of in realization, all devices or mechanism are driven by hydraulic system, hydraulic pressure
System controlled is in controller.Process automation is realized, be traditional artificial production line turns to automation, intelligent production line
Become and support is provided.
Further, hydraulic system of the invention includes three hydraulic systems, controls different mechanisms respectively；Different hydraulic pressure
System is provided with boot sequence so that workpiece longitudinal center line with the line of top seat assembly and tailstock assembly in straight line
On, it is contour to tooth gauge mid-depth and work centre line, the center line of the first eyelid retractor, the second eyelid retractor center line and work
The axis of part intersects vertically；In process, positioning accuracy is high, high precision machining for workpiece.
Further, when fixture clamps workpiece, first straight line is driven to clamp by the first hydraulic system in tailstock assembly
Device pushes away the first chain extension bar to sleeve direction, and the first buffer spring is no longer influenced by the pressure of sleeve, and sleeve is pushed out, into
And by second it is top release and top tight workpiece one end；
Further, tailstock assembly is provided with top lockable mechanism, using the irregular cambered surface of locking tapered bar in mechanism, gives
The certain frictional force of sleeve, prevents workpiece in process, and excessive to the axial force of sleeve, sleeve moves backward, and influences work
The machining accuracy of part；It sets cambered surface to irregular shape, ensures workpiece in process, locking tapered bar can be tight with sleeve
Contiguity is touched, and after work pieces process, the first pressing plate is removed, and locking tapered bar moves up, and sleeve can be retracted to the holder of tailstock assembly
It is interior, facilitate shelving for next workpiece.
Further, one end of the invention for moving drive rod by second straight line binding clasp to tooth gauge assembly, drive rod
The other end promotion tooth gauge is contacted with the gear ring of workpiece, limit the angular positioning of workpiece；To in tooth gauge mid-depth and workpiece
Heart line is contour, ensures machining accuracy；To the second buffer spring and flow stop valve are arranged in tooth gauge assembly, buffering contacts tooth gauge
The speed of workpiece prevents from acting the too fast damage flank of tooth to tooth.
Further, the center line of the first eyelid retractor supporting rod of the invention, the center line of the second eyelid retractor supporting rod are equal
Intersect with workpiece longitudinal center line, and the center line of first support bar and the center line of second support bar are mutually perpendicular to, ensures work
Part has in process from workpiece bottom and processes aspectant support force.
Further, the present invention relates to there is compactor, the second pressing plate is provided on compactor.Second pressing plate and the first support
Device coordinates, during workpiece is processed, to workpiece perpendicular to the radial clamping of bottom plate.
Further, top seat assembly of the invention is fixed on by fixed plate on the bottom plate of fixture, by positioning key top
Sharp seat assembly is fixed on the center of bottom plate, ensures the first top axis and workpiece being fixedly mounted on top seat assembly
Axis on same straight line, meet requirement on machining accuracy.
Further, it while being provided with whether action when detection clamps workpiece is completed, while transmitting a signal to controller
Air tightness detection machine structure.The different mechanism of the present invention is provided with different air tightness detection machine structures, for detecting axially position, angular
Positioning and clamping is unclamped, and passes to next step by information is completed, and completes the process for entirely clamping workpiece.
Further, the invention further relates to the application method of a kind of fixture, the application method is by manipulator by work
Part is placed on fixture, starts hydraulic system by controller, axial, angular, radial limit is carried out to workpiece；All limits
The center line of workpiece by the axis of workpiece, ensures the machining accuracy of process；The completion of each procedure of processing, has pair
The air tightness detection machine structure answered sends a signal to controller and sends out executing instruction for next step after the completion of controller judgement action.
The application method of this fixture, prosthetic operation, high degree of automation, step is tight, and process precision is high.
【Description of the drawings】
Fig. 1 is the front view of present clip assembly；
Fig. 2 is the vertical view of present clip assembly；
The oil hydraulic circuit figure of Fig. 3 present invention；
Fig. 4 is the sectional view of the top seat assembly of present clip；
Fig. 5 is the sectional view of present clip tailstock assembly；
Fig. 6 is the sectional view of the top lockable mechanism of present clip；
Fig. 7 is sectional view of the present clip to tooth gauge assembly；
Fig. 8 is the sectional view of present clip air tightness detection machine structure；
Wherein：The top seat assemblies of 1-；2- first is top；3- is to tooth gauge assembly；4- workpiece；5- compactors；6- second is top；
7- tailstock assemblies；The top lockable mechanisms of 8-；9- tailstock lockable mechanisms；The first supporting racks of 10-；11- bottom plates；The first eyelid retractors of 12-；
The second eyelid retractors of 13-；The second supporting racks of 14-；15- the first air tightness detection machine structures；16- the second air tightness detection machine structures；17- third gas
Close testing agency；18- admission lines；19- gas examines cylinder；20- gas examines cavity；21- piston rods；22- gas examines piston；23- escape pipes
Road；24- annular grooves；The second return springs of 25-；26- hydraulic systems；1.1- bearing；1.2- positioning key；1.3- fixed plate；3.1- the
Two straight line clamps；3.2- is to tooth gauge；3.3- pillar；3.4- drive rod；The second buffer springs of 3.5-；3.6- the second chain extension bars；
3.7- hinge bar；4.1- gear ring；4.2- tooth socket；5.1- hold-down cylinder；The second pressing plates of 5.2-；5.2.1- central point；7.1- holder；
7.2- sleeve；7.2.1- first end face；7.2.2- second end face；7.3- chuck pads；7.4- the first chain extension bars；7.5- first is buffered
Spring；7.6- first straight line binding clasps；8.1- locking tapered bars；8.2- cambered surface；The first return springs of 8.3-；8.4- locating part；
The first pressing plates of 9.1-；9.2- tailstock locking cylinders；11.1-T shape slot；12.1- first support bars；13.1- second support bars；26.1-
First hydraulic system；26.2- the second hydraulic system；26.3- third hydraulic system；26.4- pressure reducing valves；26.5- solenoid valves；
26.6- oil pumps；26.7- fuel tanks；26.8- system pressure summary table；26.1.1- pressure gauge；26.1.2- tailstock retaining jar；26.2.1-
Shutoff valve；26.2.2- angular retaining jar；26.3.1- sequence valve.
【Specific implementation mode】
The present invention is described in further detail below in conjunction with the accompanying drawings：
Referring to Fig. 1 and Fig. 2, the present invention relates to a kind of axial workpieces to bore milling hydraulic pressure automation fixture and its application method.Institute
State axial workpiece bore milling hydraulic pressure automation fixture include bottom plate 11, be sequentially arranged on bottom plate 11 and center line be it is collinear
Top seat assembly 1, the first supporting rack 10, the first eyelid retractor 12, the second supporting rack 14 and tailstock assembly 7, wherein top seat assembly 1
It can be moved along axis of workpiece on bottom plate 11, remaining is fixed installation；Workpiece 4 is first supported mounted in the first supporting rack 10 and second in advance
On frame 14, after be installed between top seat assembly 1 and tailstock assembly 7, bottom plate 11 is equipped in the side of workpiece 4 to tooth gauge assembly
3, the other side of workpiece 4 is equipped with the second eyelid retractor 13 and compactor 5.
Referring to Fig. 3, drive the hydraulic system 26 of this fixture include the first hydraulic system 26.1, the second hydraulic system 26.2,
Third hydraulic system 26.3, oil pump 26.6, fuel tank 26.7 and three groups of solenoid valves 26.5；Three hydraulic systems pass through 3 groups of solenoid valves
26.5 are connected in parallel under fuel tank 26.7 and oil pump 26.6, and system pressure summary table 26.8 is provided on oil circuit manifold；Each hydraulic pressure system
The oil circuit branch of system connects pressure reducing valve 26.4 first, after driven device is connected on pressure reducing valve 26.4, driven device and subtracts
Pressure gauge 26.1.1 is both provided between pressure valve 26.4；Tailstock is in series with after the pressure reducing valve 26.4 of first hydraulic system 26.1 to hold out against
Cylinder 26.1.2；Angular retaining jar 26.2.2, the second hydraulic system are in series with after the pressure reducing valve 26.4 of second hydraulic system 26.2
26.2 are additionally provided with shutoff valve 26.2.1 between pressure reducing valve 26.4 and angular retaining jar 26.2.2；Third hydraulic system 26.3 exists
It is parallel with tailstock locking cylinder 9.2, the first eyelid retractor 12, the second eyelid retractor 13 and hold-down cylinder 5.1 after pressure reducing valve 26.4 successively, second
Sequence valve 26.3.1 is provided between eyelid retractor 13 and hold-down cylinder 5.1 so that when third hydraulic system 26.3 works, after 26.4 according to
After tailstock locking cylinder 9.2, the first eyelid retractor 12, the second eyelid retractor 13 of secondary parallel connection start in place, hold-down cylinder 5.1 is rotated further by
Two pressing plates 5.2.
Referring to Fig. 4, top seat assembly 1 includes the bearing 1.1 vertical with bottom plate 11 in one end of workpiece 4, on bearing 1.1
Portion is equipped with first top 2 of one end for withstanding workpiece 4, is installed with fixed plate 1.3 under bearing 1.1, dead head is total
It is fixedly mounted in the T-slot 11.1 of bottom plate 11 by fixed plate 1.3 at 1；Workpiece 4 is placed on fixture and goes forward, top seat assembly 1
It can slightly adjust in the position of bottom plate 11, can guarantee by the T-slot 11.1 of bottom plate 11 top according to the physical length of workpiece 4
Seat assembly is moved along the axis direction of workpiece 4 always；One side of top seat assembly 1 close to workpiece 4 is installed with support work
First supporting rack 10 of 4 one end of part；
Referring to Fig. 5, tailstock assembly 7 includes the holder 7.1 being fixedly connected with bottom plate 11, holder in the other end of workpiece 4
Installation space is offered in 7.1 tops, the tail end on 7.1 top of holder is installed with first straight line binding clasp 7.6, installation space
Sleeve 7.2 and the first chain extension bar 7.4 are inside installed, the first end face 7.2.1 of sleeve 7.2 is outside holder 7.1, second end face
7.2.2 in installation space；In sleeve 7.2, the other end is stretched into line coupler 7.6 for one end of first chain extension bar 7.4
Part connection in holder 7.1；The one end of first chain extension bar 7.4 in sleeve 7.2 is installed with chuck pad 7.3, prevents
The abjection out of sleeve 7.2 of one chain extension bar 7.4；It is set with the first buffer spring 7.5, the first buffer spring outside first chain extension bar 7.4
7.5 one end and second end face 7.2.2 contacts, the other end and the contact of 7.1 inner wall of holder；It is top it to be equipped with second in sleeve 7.2
6, for second top 6 part outside sleeve 7.2, the axial displacement of the second top 6 and first top 2 cooperation limitation workpiece 4 is simultaneously true
Center positioning datum.Finite place piece 8.4 is set on the side wall of holder 7.1 also at an upper portion thereof, prevents sleeve 7.2 in installation space
Interior rotation.The second top 6 preferably Morse is top in the present invention.
Referring to Fig. 2, Fig. 5 and Fig. 6, tailstock assembly 7 is additionally provided with top lockable mechanism 8, and 7 side of tailstock assembly is equipped with tail
Seat lockable mechanism 9.Tailstock lockable mechanism 9 includes the first pressing plate 9.1 and tailstock locking cylinder 9.2, and the first pressing plate 9.1 is arranged in tailstock
On locking cylinder 9.2, the first pressing plate 9.1 can rotate to the top of top lockable mechanism 8.Top lockable mechanism 8 includes from holder 7.1
Top penetrates the locking tapered bar 8.1 in installation space, and locking tapered bar 8.1 is in contact in installation space with sleeve 7.2, locking wedge
Bar 8.1 is provided with irregular cambered surface 8.2,8.2 the top of cambered surface to 7.2 central axis of sleeve in the contact position with sleeve 7.2
Vertical range be R1, the vertical range of 8.2 bottom of cambered surface to 7.2 central axis of sleeve is R2, the half of 7.2 circular section of sleeve
Diameter is R, sets R1<R<R2.The bottom of locking tapered bar 8.1 opens up hole and places the first return spring 8.3, the first return spring
8.3 one end is in the inside of locking tapered bar 8.1, the inner wall contact of the other end and installation space.
When fixture is in non-working condition, first straight line binding clasp 7.6 gives 7.4 pulling force of the first chain extension bar, makes the first chain
Extension bar 7.4 is in installation space, and because chuck pad 7.3 makes the first chain extension bar 7.4 and sleeve 7.2 mutually limit, sleeve 7.2 is by first
Chain extension bar 7.4 pulls to the direction inside installation space, and the first buffer spring 7.5 is in confined state at this time；At this point, the first pressure
Plate 9.1 is not in the top of top lockable mechanism 8, because of R2＞ R, locking tapered bar 8.1 are not contacted with sleeve 7.2.
When workpiece 4 is placed on fixture, the first hydraulic system 26.1 acts on tailstock retaining jar 26.1.2, and tailstock is held out against
Cylinder 26.1.2 acts on first straight line binding clasp 7.6, and first straight line binding clasp 7.6 pushes the first chain extension bar 7.4, to workpiece 4
Direction is moved, and chuck pad 7.3 no longer acts on sleeve 7.2, and then sleeve 7.2 is by the thrust of the first buffer spring 7.5, slowly to
The direction of workpiece 4 is moved, and sleeve 7.2 pushes the second top 6 top tight workpiece 4；Tailstock locking cylinder 9.2 makes 9.1 inverse time of the first pressing plate
Needle turns to the top of top lockable mechanism 8, and locking tapered bar 8.1 is pressed downward by the first pressing plate 9.1, because of 8.2 the top of cambered surface
R1Less than R so that during moving down, locking tapered bar 8.1 mutually blocks locking tapered bar 8.1 with sleeve 7.2.
When workpiece 4 is processed, the power that workpiece 4 is subject to processing will produce axial or radial vibrations, at this time cambered surface 8.2
Frictional force between sleeve 7.2 can limit sleeve 7.2 to moving inside installation space.
Include the pillar 3.3 being vertically fixedly mounted on bottom plate 11 to tooth gauge assembly 3 referring to Fig. 7, pillar 3.3 connects at it
The side of nearly workpiece 4 is equipped with second straight line binding clasp 3.1, and the upper vertical of pillar 3.3, which runs through, to be had to tooth gauge 3.2, to tooth gauge
The center line of 3.2 thickness intersects with the axis of workpiece 4；Second straight line binding clasp 3.1 is stretched into a part for pillar 3.3 and second
One end of chain extension bar 3.6 is fixedly connected, and the other end of the second chain extension bar 3.6 is outer in pillar 3.3 and is cut with scissors with one end of drive rod 3.4
Connect, the other end of drive rod 3.4 with it is hinged to one end of tooth gauge 3.2, the second chain extension bar 3.6 and 3.4 hinged place of drive rod are along the
The length direction of two chain extension bars 3.6 is provided with the second buffer spring 3.5.When workpiece 4 is placed on fixture, the second hydraulic pressure system
The angular retaining jar 26.2.2 driving second straight lines binding clasp 3.1 of system 26.2, makes the second chain extension bar 3.6 to the second buffer spring
3.5 directions are moved, the hinged one end of drive rod 3.4 and the second chain extension bar 3.6 also to the movement of 3.5 direction of the second buffer spring, because
It is hingedly positioned with hinge bar 3.7 among drive rod 3.4, the other end of drive rod 3.4 is moved to the direction of workpiece 4, and then is pushed
Tooth gauge 3.2 is moved to the direction of workpiece 4, heads into a certain tooth socket 4.2 of gear ring 4.1, workpiece 4 is angularly positioned,
Prevent workpiece 4 from rotating.
It is the schematic diagram of air tightness detection machine structure referring to Fig. 8, Fig. 8, air tightness detection machine structure includes gas inspection cylinder 19, and gas is examined in cylinder 19
Gas inspection cavity 20 is offered, gas examines cylinder 19 and offers admission line 18 and outlet pipe 23, gas inspection in the both sides of gas inspection cavity 20
Gas inspection piston 22 is installed in cavity 20, piston rod 21 is installed in gas inspection piston 22；Gas inspection piston 22 side wall offer and
The annular groove 24 that admission line 18 and outlet pipe 23 coordinate, gas examine the front end of piston 22 outside 19 front end of gas inspection cylinder, piston rod 21
Front end outside the front end of piston rod 21；Gas inspection piston 22 is equipped with the second return spring 25, the second return bullet in its bottom end
Spring 25 is contacted with gas inspection 19 inner wall of cylinder.
First air tightness detection machine structure 15 and the second air tightness detection machine structure 16, when fixture is not used, piston rod 21 is not squeezed
The annular groove 24 of pressure, gas inspection piston 22 is connected to admission line 18 with outlet pipe 23, and air pressure is led off in air, at this time gas
Pressure is in open state, and pressure value is shown in controller；When fixture uses, after angular positioning in place, piston rod 21 can be examined to gas
Calm the anger inside cavity 20 inspection piston 22, gas inspection piston 22 move inward, annular groove 24 no longer with admission line 18 and outlet pipe 23
Connection, admission line is blocked by gas inspection piston side wall, is no longer communicated with air, and air pressure at this time is in closed state, in controller
Show pressure value, i.e., in place, controller receives corresponding signal, can perform and operates in next step for angular positioning；Workpiece 4 completes processing
Afterwards, gas is examined piston 22 by the second return spring 25 and the top of piston rod 21 is back to original position, and air pressure returns to open state.
For third air tightness detection machine structure 17, when fixture is not used, the second pressing plate 5.2 acts on piston rod 21, at this time
Entire gas inspection piston 22 is in confined state, and admission line 18, outlet pipe 23 are not connected to annular groove 24, at this point, at air pressure
In closed state.When fixture in use, admission line 18, outlet pipe 23 are connected to annular groove 24, at this point, air pressure is in open shape
State.
As it can be seen that the flexibility in use of air tightness detection machine structure is strong.
The specifically used method of this fixture：
1) workpiece 4 is placed on the first supporting rack 10 and the second supporting rack 14 by manipulator, and the first hydraulic system 26.1 is dynamic
Make, first straight line binding clasp 7.6 pushes the first chain extension bar 7.4 to be moved to 7.2 direction of sleeve, and the first buffer spring 7.5 releases set
Cylinder 7.2 is moved to outside holder 7.1, while driving the second top 6 top tight workpiece 4, the first top 2 and second top 6 common restriction
The axial displacement of workpiece 4 determines centralized positioning benchmark simultaneously；Second top 6 in place after, the first air tightness detection machine structure 15 transmission
Signal X1 is to controller；
2) controller receives X1 signals, the action of the second hydraulic system 26.2, and second straight line binding clasp 3.1 stretches out, passes through
Drive rod 3.4 will release tooth gauge 3.2, and a tooth socket 4.2 of gear ring 4.1 is held out against to tooth gauge 3.2 so that and workpiece 4 angularly positions,
To tooth gauge 3.2 in place after, the second air tightness detection machine structure 16 transmit signal X2 to controller；
3) controller receives X2 signals, and third hydraulic system 26.3 acts, the first eyelid retractor 12, the second eyelid retractor 13 to
4 direction of workpiece is moved, and contact workpiece 4 is simultaneously fixed, and at the same time top locking cylinder 8 drives the first pressing plate 9.1 to rotate counterclockwise pressure
Firmly locking tapered bar 8.1, locking tapered bar 8.1 move down, and cambered surface 8.2 is in close contact with sleeve 7.2, is prevented in process, cover
Cylinder 7.2 is moved forward and backward；First eyelid retractor 12, the second eyelid retractor 13 and locking tapered bar 8.1 in place after, third hydraulic system 26.3
Sequence valve 26.3.1 starts, and the second pressing plate 5.2 of driving of hold-down cylinder 5.1 is rotated clockwise to the top of workpiece 4, the second pressing plate 5.2
The central point 5.2.1 of front end is on the longitudinal center line of first support bar 12.1；Second pressing plate 5.2 in place after, the airtight inspection of third
It surveys mechanism 17 and sends signal X3 to controller；
4) controller receives signal X3, starts processing.
5) after processing is completed, the oil cylinder of all hydraulic system unclamps, and gas checks all at this time is kept in the center, and sends
Gas examines signal Y；
6) controller receives gas inspection signal Y, and manipulator takes workpiece 4 away, into next fabrication cycles.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (10)
1. a kind of axial workpiece bores milling hydraulically operated fixture, which is characterized in that including hydraulic pressure system bottom plate (11) and connect with controller
It unites (26), top seat assembly (1) and tailstock assembly (7), top seat assembly (1) and tailstock assembly (7) is installed on bottom plate (11)
Between be sequentially installed with the first supporting rack (10), the first eyelid retractor (12) and the second supporting rack (14), the side of tailstock assembly (7)
Tailstock lockable mechanism (9) is installed；Frame is distinguished on the first supporting rack (10) and the second supporting rack (14) in the both ends of workpiece (4)；
The both sides of workpiece (4) axial direction are equipped with to tooth gauge assembly (3), the second eyelid retractor (13) and compactor (5), the second eyelid retractor (13)
With compactor (5) workpiece (4) the same side；
Hydraulic system (26) is by driving tailstock assembly (7) to limit the axial displacement of workpiece (4), by driving to tooth gauge assembly
(3) angular displacement of limitation workpiece (4), by driving the first eyelid retractor (12), the second eyelid retractor (13) and compactor (5) to clamp
Workpiece (4).
2. a kind of axial workpiece according to claim 1 bores milling hydraulically operated fixture, which is characterized in that hydraulic system (26) includes
The first hydraulic system (26.1), the second hydraulic system (26.2) and the third hydraulic system being parallel under fuel tank (26.7)
(26.3)；When clamping fixture, the first hydraulic system (26.1), the second hydraulic system (26.2) and third hydraulic system (26.3) according to
Secondary startup；
The tailstock retaining jar (26.1.2) of tailstock assembly (7) is connected in first hydraulic system (26.1) oil circuit；Second hydraulic pressure system
The angular retaining jar (26.2.2) to tooth gauge assembly (3) is connected in system (26.2) oil circuit；The oil of third hydraulic system (26.3)
Tailstock locking cylinder (9.2), the first eyelid retractor (12), the second eyelid retractor (13) and the pressure of tailstock lockable mechanism (9) are parallel in road
The hold-down cylinder (5.1) of tight device (5), interior be provided with of third hydraulic system (26.3) limit the dress that third hydraulic system (26.3) drives
Set the sequence valve (26.3.1) of boot sequence.
3. a kind of axial workpiece according to claim 2 bores milling hydraulically operated fixture, which is characterized in that tailstock assembly (7) includes
The tail end of holder (7.1), holder (7.1) top is installed with first straight line binding clasp (7.6)；When workpiece (4) is processed, the
One hydraulic system (26.1) acts on tailstock retaining jar (26.1.2), and tailstock retaining jar (26.1.2) acts on first straight line clamping
Device (7.6)；
The part that first straight line binding clasp (7.6) stretches into holder (7.1) is connected with the first chain extension bar (7.4), the first chain extension bar
(7.4) the other end stretches in sleeve (7.2)；One end that first chain extension bar (7.4) stretches to sleeve (7.2) is installed with
Chuck pad (7.3), for limiting the first chain extension bar (7.4) abjection sleeve (7.2) outside；Sleeve (7.2) is mobile to be mounted on holder
(7.1) in, the first end face (7.2.1) of sleeve (7.2) holder (7.1) outside, second end face (7.2.2) is in holder (7.1)；
It is set with outside first chain extension bar (7.4) and contacts the first buffer spring (7.5) with second end face (7.2.2)；It is fixed in sleeve (7.2)
Second top (6) are installed, the center line of second top (6) is same straight line with the axis of workpiece (4)；Holder (7.1) is also set
It is equipped with the locating part (8.4) that limitation sleeve (7.2) rotates.
4. a kind of axial workpiece according to claim 2 bores milling hydraulically operated fixture, which is characterized in that tailstock assembly (7) is also set
It is equipped with top lockable mechanism (8), top lockable mechanism (8) includes the locking stretched at the top of holder (7.1) in holder (7.1)
Tapered bar (8.1)；Locking tapered bar (8.1) is contacted with sleeve (7.2), and locking tapered bar (8.1) is opened up in the contact position with sleeve (7.2)
There is irregular cambered surface (8.2), the vertical range of cambered surface (8.2) upper end to sleeve (7.2) axis is R1, cambered surface (8.2) lower end is arrived
The vertical range of sleeve (7.2) axis is R2, the radius of sleeve (7.2) circular section is R, R1<R<R2；Locking tapered bar (8.1) bottom
First return spring (8.3) is inside installed, the first return spring (8.3) is contacted with holder (7.1) inner wall；
Tailstock lockable mechanism (9) includes the tailstock locking cylinder (9.2) and tailstock locking cylinder being fixedly mounted on bottom plate (11)
(9.2) the first pressing plate (9.1) coordinated with locking tapered bar (8.1) on；When workpiece (4) is processed, third hydraulic system (26.3)
Tailstock locking cylinder (9.2) is acted on, the first pressing plate (9.1) is made to rotate counterclockwise on locking tapered bar (8.1).
5. a kind of axial workpiece according to claim 2 bores milling hydraulically operated fixture, which is characterized in that wrapped to tooth gauge assembly (3)
Connected pillar (3.3) vertical with bottom plate (11) is included, it is straight that pillar (3.3) is installed with second close on the side of workpiece (4)
Line binding clasp (3.1)；When workpiece (4) is processed, the second hydraulic system (26.2) acts on angular retaining jar (26.2.2), angularly
Retaining jar (26.2.2) acts on second straight line binding clasp (3.1)；
The part that second straight line binding clasp (3.1) stretches into pillar (3.3) is connected with the second chain extension bar (3.6), the second chain extension bar
(3.6) end for stretching out pillar (3.3) is hinged with drive rod (3.4), and the other end of drive rod (3.4), which is hinged with, passes perpendicularly through branch
Column (3.3) to tooth gauge (3.2)；It is contour along the center of its thickness and the center line of workpiece (4) to tooth gauge (3.2)；Second link
Bar (3.6) is provided with the second buffering in its one end hinged with drive rod (3.4), the length direction along the second chain extension bar (3.6)
Spring (3.5).
6. a kind of axial workpiece according to claim 2 bores milling hydraulically operated fixture, which is characterized in that on the first eyelid retractor (12)
The first support bar (12.1) of support workpiece (4) is installed, the longitudinal center line of first support bar (12.1) is perpendicular to bottom plate
(11) and with the center line of workpiece (4) intersect；Second eyelid retractor (13) is provided with from workpiece (4) lateral support workpiece (4)
The longitudinal center line of two supporting rods (13.1), second support bar (13.1) intersects with the center line of workpiece (4)；Second support bar
(13.1) longitudinal center line is vertical in three dimensions with the longitudinal center line of first support bar (12.1)；Workpiece (4) is processed
When, third hydraulic system (26.3) while acting on the first eyelid retractor (12) and the second eyelid retractor (13).
7. a kind of axial workpiece according to claim 6 bores milling hydraulically operated fixture, which is characterized in that compactor (5) installation the
One eyelid retractor (12) is other, and compactor (5) includes hold-down cylinder (5.1), and the second pressing plate (5.2) is equipped on hold-down cylinder (5.1)；Workpiece
(4) when being processed, third hydraulic system (26.3) acts on hold-down cylinder (5.1), and hold-down cylinder (5.1) keeps the second pressing plate (5.2) suitable
Workpiece (4) is pushed down in hour hands rotation, and the second pressing plate (5.2) front end is rectangle, and the central point (5.2.1) of rectangle is in first support bar
(12.1) on longitudinal center line.
8. a kind of axial workpiece according to claim 2 bores milling hydraulically operated fixture, which is characterized in that top seat assembly (1) energy
Enough to be moved along the axial direction of workpiece (4) in the T-slot (11.1) of bottom plate (11), top seat assembly (1) includes fixed plate
(1.3), fixed plate (1.3) is fixed on by positioning key (1.2) on workpiece (4)；Fixed plate is installed with bearing on (1.3)
(1.1), first top (2) contacted with workpiece (4), the center line and work of first top (2) are installed on bearing (1.1)
The axis of part (4) is same straight line.
9. a kind of axial workpiece according to any one of claims 1 to 8 bores milling hydraulically operated fixture, which is characterized in that tailstock is total
(7) are provided with the first air tightness detection machine structure (15), for whether in place to detect the axially position of workpiece (4)；To tooth gauge assembly
(3) it is provided with the second air tightness detection machine structure (16), for whether in place to detect the angular positioning of workpiece (4)；Compactor (5) is arranged
There is third air tightness detection machine structure (17), for whether in place to detect workpiece (4) clamping and release；
First air tightness detection machine structure (15), the second air tightness detection machine structure (16) and third air tightness detection machine structure (17) are that structure is identical
Air tightness detection machine structure, including gas inspection cylinder (19), gas inspection cylinder (19) offer admission line (18) and outlet pipe (23), and gas is examined
Gas inspection cavity (20) is provided in cylinder (19)；Gas inspection piston (22) is installed, gas examines peace in piston (22) in gas inspection cavity (20)
Equipped with piston rod (21)；The side wall of gas inspection piston (22) offers the annular groove with admission line (18), outlet pipe (23) cooperation
(24), the front end of gas inspection piston (22) is outside gas inspection cylinder (19) front end, and the front end of piston rod (21) is before gas inspection piston (22)
End is outer；Gas inspection piston (22) is equipped with the second return spring (25) in its bottom end, and the second return spring (25) examines cylinder with gas
(19) inner wall contacts.
10. it is a kind of using described in claim 9 axial workpiece bore milling hydraulically operated fixture application method, which is characterized in that including with
Lower step：
1) workpiece (4) is placed on the first supporting rack (10) and the second supporting rack (14) by manipulator；Controller is to hydraulic system
(26) signal, hydraulic system (26) drive tailstock assembly (7) top tight workpiece (4)；First air tightness detection machine structure (15) sends gas inspection
Signal X1 is to controller, implementation steps 2)；
2) hydraulic system (26) driving angularly positions workpiece (4) tooth gauge assembly (3) clamping workpiece (4)；Second airtight detection
Mechanism (16) sends gas and examines signal X2 to controller, implementation steps 3)；
3) hydraulic system (26) drives the first eyelid retractor (12) and the second eyelid retractor (13) contact workpiece (4), while driving tailstock
Lockable mechanism (9) locks tailstock assembly (7)；Hydraulic system (26) drives compactor (5) workpiece pressing (4)；The airtight detection of third
Mechanism (17) sends gas and examines signal X3 to controller, implementation steps 4)；
4) controller starts processing program；
5) after processing is completed, the oil cylinder of all hydraulic system (26), the first eyelid retractor (12) and the second eyelid retractor (13) unclamp；Gas
Checking device is kept in the center, and gas inspection signal Y is sent；
6) controller receives signal, and manipulator takes workpiece (4) away, into next fabrication cycles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810541881.6A CN108421997B (en) | 2018-05-30 | 2018-05-30 | Hydraulic clamp for drilling and milling shaft parts and application method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810541881.6A CN108421997B (en) | 2018-05-30 | 2018-05-30 | Hydraulic clamp for drilling and milling shaft parts and application method thereof |
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| CN108421997B CN108421997B (en) | 2024-03-12 |
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Cited By (4)
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| CN109202107A (en) * | 2018-10-30 | 2019-01-15 | 西安法士特汽车传动有限公司 | A kind of Double Tops point positioning mechanism and its localization method with bearing |
| CN113369933A (en) * | 2021-06-25 | 2021-09-10 | 昆明云内动力股份有限公司 | Efficient quick-change zero-point positioning fixture for engine cylinder block |
| CN120791634A (en) * | 2025-06-12 | 2025-10-17 | 陕西法士特汽车传动集团有限责任公司 | Center hole grinding processing device and method |
| CN121131836A (en) * | 2025-11-18 | 2025-12-16 | 内江金鸿曲轴有限公司 | A drilling device for crankshaft production |
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| CN113369933A (en) * | 2021-06-25 | 2021-09-10 | 昆明云内动力股份有限公司 | Efficient quick-change zero-point positioning fixture for engine cylinder block |
| CN120791634A (en) * | 2025-06-12 | 2025-10-17 | 陕西法士特汽车传动集团有限责任公司 | Center hole grinding processing device and method |
| CN121131836A (en) * | 2025-11-18 | 2025-12-16 | 内江金鸿曲轴有限公司 | A drilling device for crankshaft production |
| CN121131836B (en) * | 2025-11-18 | 2026-03-06 | 内江金鸿曲轴有限公司 | Punching equipment for crankshaft production |
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| CN108421997B (en) | 2024-03-12 |
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